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Home >> Nissan-Datsun >> 2012 >> Quest LE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1550 To P2A03 >> DTC P1574: ASCD Vehicle Speed Sensor >> Diagnosis Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Diagnosis Procedure

  1. CHECK DTC WITH TCM

    Check DTC with TCM. Refer to "CONSULT FUNCTION (TRANSMISSION) ".

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Perform trouble shooting relevant to DTC indicated.

  2. CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

    Check DTC with ABS actuator and electric unit (control unit). Refer to "CONSULT FUNCTION ".

    Is the inspection result normal? 

    YES: GO TO 3.

    NO: Repair or replace malfunctioning part.

  3. CHECK COMBINATION METER FUNCTION

    Check combination meter function. Refer to "CONSULT FUNCTION ".

    : INSPECTION END

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